Heart valve cover



FIG. 1 is a first, side perspective view of a first portion of a heartvalve cover;

FIG. 2 is a first side view thereof;

FIG. 3 is a second side view thereof;

FIG. 4 is a third side view thereof;

FIG. 5 is a fourth side view thereof;

FIG. 6 is a top side view thereof; and,

FIG. 7 is a bottom side view thereof.

Broken lines are also for illustrative purposes only and form no part ofthe claimed design.

CLAIM The ornamental design for a heart valve cover, as shown anddescribed.